JC's research


Week 13:

12/2/11

Inhibition Test with compound 7575772. (Marshall's Top Scoring Compound)
other_compound_inhibition_test.png
Compound showed no signs of Inhibition. Orthovanadate did inhibit the YopH protein.

11/30/11

Inhibition Test with compound 5153298
YopH_inhibition_1.png
Compound did not inhibit the protein. Orthovanadate did inhibit the YopH protein.

11/29/11

Vary Substrate (pNPP) Test

vary_substrate_assay.png
Different amounts of pnPP affected the absorbance of the YopH enzyme. The optimal volume of pNPP chosen was 16 uL.

11/28/11

Phosphatase Enzyme Test
Enzyme Works
yoph_enzyme_monomer_test.png
Volume of Enzyme vs Absorbance graph. Optimal volume of enzyme was 30 uL or 60 nanograms.

enzyme_test_image_1.png
Volume of Enzyme added vs Absorbance graph. Optimal volume of enzyme was 30 uL or 60 nanograms.

Week 12:

11/21
FLPC and Concentration.
fplc_image.png
Peak between 32-38 is the dimer sample of YopH. Peak between 40-45 is the monomer sample of YopH

The size of the YopH protein is 33512.8 daltons.

Week 11:




11/18/2011

Dried the gel in the biotech lab for 2 hours at 70 C.

11/15/2011

Ran all my samples on an SDS page gel. Gel shows that my protein sample might have some impurities.
Final_image.png
Lane 1 contains NEB PageRuler Prestained Protein Ladder. Lane 2 contains cell lysate sample before induction. Lane 3 contains cell lysate sample after induction. Lane 4 contains the soluble fraction sample. Lane 5 contains the flow through sample. Lane 6 contains the wash sample. Lane 7 contains the elution 1 sample. Lane 8 contains the elution 2 sample. The YopH protein can be found in lanes 7 and 8. The two distinct bands in each lane represent the YopH protein. The higher bands represents dimer formation of the YopH protein. The lower bands represents YopH as a monomer.


Week 10:

11/09/11

Got rid of pellet and stored supernatant in frdige.

11/08/11

Attended Symposium at AT&T Conference center.

11/07/11

Submitted top 5 compounds to order. Top compound was 5153298
ordered_compounds.png

Week 9:

11/05/2011

Day 3 of Protein Expression. Stored pellet sample in -80 C freezer. Weight of Pellet = 2.78 g

11/04/2011

Day 2 of Protein Expression.
1107111852a_bl21.jpg
Picked 2 colonies to grow up from agarose plate containing BL21 (DE3) cells + YopH

11/03/11

Ran some virtual screen jobs against the ChemBridge-Diversit3d.sdf library. Had to make several conf files since the library was too big to screen.

11/01/11

Positive results from DNA sequencing. Image coming later.Began Day 1 of expression. Transformed plasmid into BL21 cells. Grew up positive colony from master plate too.
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Sample 1 results. Foward Primer. Unmatched basepairs towards the end were compared to the reverse sequence.

blast_results_reverse.png
Reverse Sequence of Sample 1.


Week 8:

10/27/2011

Nanodropped and sent 4 samples with plic primers to sequencing.

10/26/2011

Centrifuged colonies and miniprepped.

10/24/2011

Prepared master plate. picked 8 colonies to grow up.

10/23/11

Cohesive end generation of PCR Inserts and Accepting Vector. Anealing and transformation.


Week 7:

10/20/11

Submitted first run of the HF9 Library.
No colonies grew up on plate. Prepared more vector. Made more PCR product.

10/19/11

Cohesive End Generation on PCR insert and Accepting Vector and Anealing and Transformation and gel check on pNIC-Bsa vector simultaneously.
bad_pnic_101911.png
Lane 2: 1 kb ladder Lane 4: pNIC-Bsa4, Lane 6: pNIC-Bsa4. Both samples only contain one band. RE digest did not work.

10/16/11 Prepared pNIC-Bsa4 vector with BsaI.


Week 6:

10/14/2011

jcs3733_PCRsquaredcleanupsample_101411.jpg
PCRsquared concentration.


secondary_pcr_jcs_101411.JPG
Lane 2: 100 bp ladder Lane 3: Primary PCR Lane 4: Secondary PCR

YopH gene (921 bp) looks the correct size.

10/13/2011 Sequencing Results


10/10/2011

Sent 4 samples with for/rev primers to DNA sequencing

Week 5: 10/3/11

Completed Transformation on 10/07/11. DNA sequencing on Oct 10.

plate_a.jpg
Plate A: contains DH5-a cells with pNIC-Bsa4 plasmid and possible YopH gene. Picked 8 colonies from this plate.

jcspnicsample3.jpg
Concentration of PNic-BSA4 vector.

Transformation on 10/4/11

pcrsquared_pic.png
PCR squared sample. YopH Gene


Week 4: 9/26/11

Was not able to log in a lot of hours this week. Will make up for it.
good_pnic.png
1kb ladder with 3 different samples of cut pnic bsa4 vector

Week 3: 9/19/11

Prepared 3 more samples of Pnic Bsa4 vector. need to purify and gel check.
Prepared accepting PNic Bsa4 vector. Failed

cut_pnic_gel.png
Vector is cut in to places but the 2 dna fragments are about the same length which is bad.

Week 2: 9/12/11

Little work done in lab. Spent a lot of time working on research poster and at LSAMP conference.

Week 1:

J.C. - looks good. - Dr. B

3rd Try: Primary/Secondary PCR Results 9/7/11

2ndary PCR doesn't look too good. Ran PCR squared after. Might have to run again for a better band or use some of marshall's sample.
3_pcr_try.png
100 bp ladder, primary pcr, secondary pcr. One distinct band and one light band.




2nd Try: Primary/Secondary PCR Results 9/6/11

Used old primary pcr from the first try and made a second primary pcr. Diluted Custom primers. Used first primary pcr sample for the third try because it was similar to the primary pcr sample from the summer.
2nd_try_pcr.png
skip. 100 bp ladder, primary pcr, secondary pcr, primary pcr, secondary pcr. Secondary PCRs did not show up. Must of messed up on the pipetting part. :/




1st Try: Primary/Secondary PCR Results 9/1/11

1st_primer_overlap.png
1 kb ladder, secondary pcr, same sample of secondary pcr, primary pcr at the end. Contamination on secondary pcr. re did.

Summer 2011

Transformation Efficiency Lab


plasmid_A.JPG
Plate with 1 ng of pGFP or 6.329 ul of dilution 3. 15 colonies

Plasmid_B.JPG
Plate with 5 ng of pGFP or 3.165 ul of dilution 2. 125 colonies

Restriction Enzyme Digest

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Lane 1 (skip) Lane 2 (1 kb DNA ladder) Lane 3 (Uncut Plasmid) Lane 4 (EcoRI) Lane 5 (PvuII) Lane 6 (EcoRI + PvuII)

PGBR22 PCR

restriction_enzyme_first_gel_pic.png
Lane 1 (Skipped) Lane 2 (100bp ladder) Lane 3 (Sample A) Lane 4 (Sample B) Lane 5 (Sample C) Lane 6 (Sample D) Lane 7 (100 bp ladder) Lane 8 (Sample A) Lane 9 (Sample B) Lane 10 (Sample C) Lane 11 (Sample D) Lane 12 (Skipped) Gel was shared. Lanes 1-6 Joey Lanes 7-12 JC

pGFP PCR

jcpgbr22pcrgel.png
Lane 1 (Empty) Lane 2 (100bp ladder) Lane 3 (Sample 1 w VDS Primer) Lane 4 (Sample 2 w VDS Primer) Lane 5 (Sample 3 w VDS Primer) Lane 6 (Sample 4 with VDS primer) Lane 7 (Sample 5 w M13 Primer) Lane 8 (Sample 6 w M13 Primer) Lane 9 (Sample 7 w M13 Primer) Lane 10 (Sample 8 w M13 Primer)

pLIC PCR

P-nic_bsa_4_gel.png
Dropped the gel right after it finished running. I got the remains of it and place it in the UV Display machine. Only 100 bp ladder is visible. Still need to redo.

pNIC- Bsa4 (CA7) Target: HSCD00041026

1st Try. Gel was to thin, so the image would not show up on screen. Didn't work though.

Ca7_gel_first_try.png
Second try. Tried new temperature settings but still used the same other solutions, such as MgCl2.

ca7_gel_second_try.png
Third try. Used the same temperature settings as before and used MgSO4 instead of MgCl2. Still no results.

Custom Primer Overlap Gel

custom_primer.png
Lane 1 (Empty) Lane 2 (100 bp DNA ladder) Lane 3 (Joey's Primary PCR) Lane 4 (Joey's Secondary PCR) Lane 5 (Larry's Primary PCR) Lane 6 (Larry's Secondary PCR) Lane 7 (JC's Primary PCR) Lane 8 (JC's Secondary PCR

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Master Plate